我的网站,在Heroku中托管,一直在使用Rails 3.2.8.我正在使用带有HighVoltage gem的路由约束类来处理静态(主要是)网页：
routes.rb中：
routes.rb中：
get "/*id" => "high_voltage/pages#show",constraints: Constraints::StaticPage.new
我在/lib/constraints/static_page.rb中有一个文件：
module Constraints
class StaticPage
def matches?(request)
File.exist? file_path(request.path)
end
private
def file_path(view)
static_page_views_dir.to_s.concat("#{view}.html.erb")
end
def static_page_views_dir
Rails.root.join('app','views','pages')
end
end
end
问题是,我刚刚更新到Rails 3.2.9并做了一个git push heroku和我的应用程序崩溃了:(
my-host:my-site scott$heroku ps === web: `bundle exec rails server -p $PORT` web.1: crashed 2012/11/14 12:14:41 (~ 2s ago)
显然,Ruby / Heroku找不到我的Constraints :: StaticPage类.我在我的routes.rb顶部需要它：
require 'constraints/static_page'
在Rails 3.2.9中有什么变化,以便不再适用于Heroku吗？在当地一切正常,只是没有在Heroku.如果我在我的路线中取出那个约束,一切都很完美(除了没有那些约束).这是我的heroku日志输出：
2012-11-14T20:14:36+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile,or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 2012-11-14T20:14:36+00:00 app[web.1]: DEPRECATION WARNING: You have Rails 2.3-style plugins in vendor/plugins! Support for these plugins will be removed in Rails 4.0. Move them out and bundle them in your Gemfile,or fold them in to your app as lib/myplugin/* and config/initializers/myplugin.rb. See the release notes for more on this: http://weblog.rubyonrails.org/2012/1/4/rails-3-2-0-rc2-has-been-released. (called from <top (required)> at /app/config/environment.rb:5) 2012-11-14T20:14:38+00:00 app[web.1]: => Booting WEBrick 2012-11-14T20:14:38+00:00 app[web.1]: => Rails 3.2.9 application starting in production on http://0.0.0.0:18361 2012-11-14T20:14:38+00:00 app[web.1]: => Call with -d to detach 2012-11-14T20:14:38+00:00 app[web.1]: => Ctrl-C to shutdown server 2012-11-14T20:14:38+00:00 app[web.1]: Exiting 2012-11-14T20:14:38+00:00 app[web.1]: /app/config/routes.rb:50:in `block in <top (required)>': uninitialized constant ActionDispatch::Routing::Mapper::Constraints::StaticPage (NameError) 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.9/lib/action_dispatch/routing/route_set.rb:282:in `instance_exec' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.9/lib/action_dispatch/routing/route_set.rb:282:in `eval_block' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/actionpack-3.2.9/lib/action_dispatch/routing/route_set.rb:260:in `draw' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/config/routes.rb:3:in `<top (required)>' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:40:in `block in load_paths' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:40:in `each' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:34:in `execute_hook' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:42:in `each' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application/finisher.rb:52:in `block in <module:Finisher>' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:40:in `load_paths' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/devise-2.1.2/lib/devise/rails.rb:14:in `block in <class:Engine>' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application/routes_reloader.rb:16:in `reload!' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application.rb:108:in `reload_routes!' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/activesupport-3.2.9/lib/active_support/lazy_load_hooks.rb:34:in `call' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:55:in `block in run_initializers' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `run_initializers' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/config/environment.rb:5:in `<top (required)>' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/railtie/configurable.rb:30:in `method_missing' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/config.ru:4:in `block in <main>' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/application.rb:136:in `initialize!' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:54:in `each' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `instance_eval' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `run' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/config.ru:1:in `new' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:51:in `initialize' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/initializable.rb:30:in `instance_exec' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in `tap' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:50:in `<top (required)>' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/config.ru:1:in `<main>' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:40:in `eval' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/builder.rb:40:in `parse_file' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:200:in `app' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/commands/server.rb:46:in `app' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:301:in `wrapped_app' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/rack-1.4.1/lib/rack/server.rb:252:in `start' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/commands/server.rb:70:in `start' 2012-11-14T20:14:38+00:00 app[web.1]: from /app/vendor/bundle/ruby/1.9.1/gems/railties-3.2.9/lib/rails/commands.rb:55:in `block in <top (required)>' 2012-11-14T20:14:38+00:00 app[web.1]: from script/rails:6:in `require' 2012-11-14T20:14:38+00:00 app[web.1]: from script/rails:6:in `<main>' 2012-11-14T20:14:40+00:00 heroku[web.1]: Process exited with status 1 2012-11-14T20:14:40+00:00 heroku[web.1]: State changed from starting to crashed
解决方法
你可以在你的Gemfile中试用以下版本：
# Gemfile gem 'rails','3.2.9' gem 'high_voltage','~> 1.2.1' gem 'thin' # ...
高压的1.2.1版本具有烘焙的根路径约束.这将允许您从config / routes.rb文件中完全删除路由.
只需为高压设置初始化程序：
# config/initializers/high_voltage.rb HighVoltage.route_drawer = HighVoltage::RouteDrawers::Root
我将上面的内容部署到Heroku上的Cedar应用程序,它按预期运行.